Radiator



J. A. IRWIN.

RADIATOR.

APPLICATION man JAN.14. 19m.

Patented Aug. 26,- 1919.

WITNESS UNITED STATES PATENT OFFICE.

I JOHN A. IRWIN, 0F DETROIT, MICHIGAN ASSIG-NOR TO AMERICAN PRESSWELD RADIATOR CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

RADIATOR.

Specification of Letters Patent.

Patented Aug. 26, 1919.

To all whom it may concern: 7

Be it known that I, JOHN A. IRWIN, .a citizen of the United States, and residing at Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved ltadiator, of which the following is a specification.

Some objection has been raised to the use of sheet metal radiators as heretofore constructed on the ground that rusting might take place in the water pockets which were formed at the lower ends of the sections. The object of the present invention is to overcome this objection and, incidentally, to insure a more free circulation of air about the sections, whereby a greater radiation ma take place per unit of radiating surface t an is the case with ordinary constructions.

' sheet metal sections nested together and having their extreme lower ends opening into a pipe which extends along beneath the sections, the sections and the plpe being connected by fused joints. It also consists in a radiator section formed of sheet metal halves welded together circumferentially, except at their lowermost points, where they are spaced from each other and received in slots cut transversely in the upper wall of a connecting pipe. Again, the invention consists in a pair of thin wide pressed metal radiator sections having bosses near their upper ends whereby they are spaced properly from one another, and being separated by an air space below the bosses throughout their entire length. The invention also consists in the details of construction shown, described and claimed.

In the drawings, Figure 1 is an end view of a radiator showing a preferred embodiment of the invention. ig. 2 is a fragmentary central longitudinal vertical section on a larger scale. Fig. 3 is an enlarged section on the line 3-3 of Fig. 2.

Fig. l-is a section on the line 4-4 of Fig.

1. Fig. 5 is a section on the line 5-5 of Fig. 4, showing the parts in larger scale than 1 does Flg. 2.

Each section is made u of the sheet metal halves l and 2 having t e out-turned marginal flanges 3 and 4: Welded together. At

their upper ends, the sections preferably include the bosses 5 and 6, whereby the proper spacing is secured without the use of additional elements. If the particular radi ator is intended for use with steam, it is unnecessary that there be any opening or connection between adjacent sections'at the top, but where it is designed for use with hot water, or on other two-pipe systems, any suitable connection may be employed. It is preferable also, as shown in Fig 3, to provide the halves of each section with telescoping flanges 8 and 9 the edges of which are welded together to form stays. The sections may thus be made wide and thin to secure a maximum radiatingsurface in a minimum space.

At the bottom of each section, the flanges 3 and 4 are spaced apart slightly and extended downwardly, as indicated at 10 and 11, to form narrow funnel-like passages 12 the longest dimensions of which are parallel to the seams between the halves. These downturned flanges are received in slots which are cut transversely in a pipe 13 preferably arranged in the central longitudinal plane of the radiator. The connections between the pi e and the sections are made by welding. ince the pipe is usually of thicker material than the sections, it would be difli- 1 to fill in the notch somewhat with additional molten metal 16 in order to properly strengthen-the parts.

The sections may be clamped tightly together at the top, if desired, by the bolts 18 that pass through the openings formed by the flanges 8 and 9 and extend from end to end of the radiator.

It will 'be noted that the sec ions are spaced apart from each other at all points below the bosses 5 and 6: a more rapid circulation of air is thus allowed than can take lace in ordinary radiators. which results in increased radiation per unit of surface,

By threadingthe pipe 13 at each end (but one end being shown) the radiator may readily be connected to existing pipes regardless of whether they are at the right or the left of the proposed location. The other end ofthe pipe is, of'course, closed by a cap 19. The chief advantage of this pipe 13 is that it affords means for draining the radiator and thus obviating the undesirable effect of Water standing in bottom of the sections which may cause'rusting. Any water which may stand in the comparatively heavy pipe 13 will have no more effect there than anywhere else in the entire heating system.

It is evident without .departing from the spirit of the invention and I do not,.therefore, wish to be limited except as indicated by the subjoined claims.

I claim 4 1. A sheet metal radiator comprising a wide thin section including a pair of side portions having circumferential flanges secured together, there being an opening be tween the side portions at the lowermost point in the section, and a tubular member of less diameter, than the transverse width of the section connected to the section around the opening through which all water of condensationflis allowed to escape.

' 2. A radiator comprising a tubular member notched in its upper side, a sheet metal radiator section having a downwardly convex and perforated lower end received in the notch and connected to the walls thereof.

3. A radiator comprising a tubular-memher notched transversely in its upper side, a thin wide sheet metal radiator section in cluding a pair of sides joined to each other along their margins except at their lowest points where they are spaced apart to form an opening which registers with the notch,

that the details of construction may be varied vto a considerable extent said openings lead, said member being arranged substantially perpendicular to the planes of the sections and being secured to the sections around the openings.

5. A radiator comprising a plurality of thin wide sheet metal sections each having an opening in its wall at substantially the lowest point, a tubular member having transverse notches in which those portions of the sections immediately surrounding the openings are received, the metal of the sections being fused with that of the tubular member at the notches.

6. 'A radiator comprising a thin wide section formed of two halves of thin sheet metal joined along their margins, a notched tubular metal member formed of thicker material than thesection, the tubular member having its outer portion removed for a short distance around the notch to render the material at the notch of approximately the same thickness as the metal of the section, the section being welded to the tubular member around the notch.

, 7. A radiator comprising a plurality of upright thin sheet metal sections nested together, a tubular member notched to receive the lower edges of the sections, the metal of the sections projecting into the notches to form spout like elements through which all water may flow from the section into the member, the walls of the notches being Welded to the section above the lower ends ofthe spout-like elements. v

JOHN A. IRWIN. 

